Testbed for coupling starlight into fibers and astrophotonic instruments

Momen Diab; Aline N. Dinkelaker; John Davenport; Kalaga Madhav; Martin M. Roth

doi:10.1117/12.2564720

13 December 2020 Testbed for coupling starlight into fibers and astrophotonic instruments

Momen Diab, Aline N. Dinkelaker, John Davenport, Kalaga Madhav, Martin M. Roth

Author Affiliations +

Proceedings Volume 11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV; 114516G (2020) https://doi.org/10.1117/12.2564720
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

We assembled a testbed to study coupling of starlight through atmospheric turbulence via astronomical telescopes into astrophotonic devices. The setup allows for varying the turbulence strength and investigating the effects of different levels of adaptive optics correction on the efficiency of integrated optics. In addition to recording optical powers and wavefront errors, focal plane images are captured from which spots sizes and Strehl ratios are also measured. Novel astrophotonic components proposed as alternatives to conventional optical instruments can therefore be qualified in terms of coupling efficiency and throughput on the testbed before they are tested on the sky.

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Momen Diab, Aline N. Dinkelaker, John Davenport, Kalaga Madhav, and Martin M. Roth "Testbed for coupling starlight into fibers and astrophotonic instruments", Proc. SPIE 11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV, 114516G (13 December 2020); https://doi.org/10.1117/12.2564720

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